The operative phrase here is "caused by". Again, moving supplies, temporary housing, etc., PRIOR to Katrina would have only added to the amount of cleanup. I think that is a pretty fair assumption, don't you?

No, I think that's quite a fallacious assumption. Moving temporary housing ahead of the storm obviously doesn't make sense. But it's a red herring to suggest that FEMA did the best job it could to get supplies in. Walmart was able to get supplies in before FEMA did. And in many instances, when people did get supplies in, FEMA turned them away.

I have seen the numbers on this, but it's going to take some effort to track them down. I don't have time right now, so I'll work on that later. But from the numbers I saw, there weren't anywhere near enough school buses to make much of a difference in the numbers of people left behind.